* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    padding: 15px;
    background-color: aliceblue;
}

.layui-form-item {
    width: 500px;
    text-align: center;
}

.layui-form-item label {
    padding-right: 0px;
}